Valve.



PATENTED JAN. 1, 1907. H. JONES.

VALVE APPLICATION FILED NOV. 21, 1906.

IN VE N 70/? WITNESSES:

ATTORNEY UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

- Patented Jan. 1, 1907.

'Application filed November 21, 1905. Serial No. 288,454.

To all, whom it may concern Be it known that I, HARRY JONES, a citizen of the United States, residing at W ashington, in the District of Columbia, have invented new and useful Improvements in Valves, of which the following is a specification.

My invention relates to valves and it consists inthe construction and arrangement of the several parts which will be fully described in the specification, illustrated in the drawings, and particularly pointed out in the claims.

One object of my invention'is to provide a cushion on the edge of the valve which will lessen the wear on the valve andon the valveseat.

Another object of my invention is to relieve the pressure between the valve and valve-seat.

A further object of my invention is to prevent grit or sediment collecting between the valve and the valve-seat.

I accomplish these objects by the constructions shown in the accompanying drawings, forming a part of this application, and in which-- Figure 1 shows my improvements on a valve in position in a vertical sectional view of a valve-casing. Fig. 2 shows the valve with an annular groove and valve-stem after the ring or gasket is applied. Fig. 3 shows the ring or asket in the form before being applied to t e valve, as shown in Fig. 1.

Fig. 4 shows the valve with a hollow groove around the periphery; and Fig. 5 shows a ring or gasket in one of the forms intended to be applied on valves having a semicircular groove in the edge of the valve, as shown 1n Fi 4. A

Iteferring to the drawings, A represents a vertical section of a valve-casing, and A the valve-seat.

B represents a valve, and B the valve stem, and b the groove in the edge of the valve.

C and C represent the rings or. gaskets which I apply to the valves.

The valves heretofore devised, while pos sessing 'merit, have been defective in some features, which I seek to remedy. To lessen the wear on the valve and the valve-seat, a cushion is needed, so that the force of their coming together may be relieved. To remedy this defect, I provide a groove, angular or curved, in the edge of the valve, as shown in Figs. '2 and 4, and in this groove I place an elastic ring or gasket, preferably made .of rubber, whichv fills the groove in the valve and may extend slightl beyond the periphery of the same. I pre erably construct this ring or gasket so that it shall extend beyond the periphery of the valve and also slightly below said periphery, but not so as to prevent the lower face of the valve from coming inv full and close contact with the valve-seat, as the gasket will turn up to permit such seating. In this way it res llts that the sediment, grit, or sand which may have caught under the valve during its preceding action will be liberated and washed away by the liquid passing from below the valve, around, and above it by the succeeding action.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. The combination with a valve-casing provided with a port surrounded by a valveseat, of a valve-body provided with a surface of greater diameter than said port opposed to said seat and in position to engage it and having a groove in its periphery adjacent to said surface but more remote from said seat, and an elastic ring seated in said groove and projecting beyond both of its walls.

2. The combination with a valve-casing provided with a port surrounded by avalveseat, of a valve-body provided with a surface ofgreater diameter than said port opposed to said seat and in position to enga e it and having a groove 111 its periphery, adjacent to said surface but more remote from said seat,

and an elastic ring seated in said groove and pro ecting beyond both of its walls and normally extending beyond said body in the direction of said seat.

' 3. A reciprocating valve comprising an i n tegral rigid body having a seating-surface transverse to its direction of movement, and a groove in its periphery adjacent to said surface, and a flexible-and elastic ring lyin n said groove and projecting radially beyon its walls. 7

In testimony whereof I aflix my signature in presence of two subscribing Witnesses.

' HARRY JONES. 

